Description
The State of Alaska Division of Geological & Geophysical Surveys (DGGS) produced a digital surface model (DSM) and an orthorectified aerial image over Valdez Glacier ice-dammed lake in support of glacial lake outburst flood hazard assessment and monitoring. Aerial photographs and Global Navigation Satellite System (GNSS) data were collected on October 12, 2016, and were processed using Structure-from-Motion (SfM) photogrammetric techniques to create orthoimagery and a DSM. The orthoimagery is a four-band, 8-bit unsigned GeoTIFF file. The orthoimagery has a GSD of 0.096 m per pixel, and the "No Data" value is set to 256. All files can be downloaded free of charge from the DGGS website (http://doi.org/10.14509/30200).
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| orthoimage | Unknown | CSDGM IMPORT ERROR: No digtinfo/formcont | Open resource |
| Web Resource | Unknown | Open resource |
Tags
- aerial photography
- digital elevation model
- digital surface model (dsm)
- elevation
- engineering geology
- environmental
- flood
- geologic
- geological process
- geologic hazards
- geology
- geomorphology
- glacial
- glacial geology
- glacial geomorphology
- glacial lake
- glacial processes
- glaciation
- glacier flood
- glacier outburst flood
- glaciers
- glaciology
- ice
- ice dam
- lake level
- lakes
- orthoimagery
- photogrammetry
- structure from motion
- valdez